{"title":"基于氮氧同位素测定喀斯特高原储层中硝酸盐来源。","authors":"Jie Kong, Zhongfa Zhou, Yongliu Li, Xianmei Liu, Chaocheng Wen, Jiangting Xie","doi":"10.1080/10256016.2023.2176850","DOIUrl":null,"url":null,"abstract":"<p><p>Investigating the sources, migration and proportional contribution of nitrate is essential to effectively protect water quality. <i>δ</i><sup>15</sup>N-NO<sub>3</sub><sup>-</sup>, <i>δ</i><sup>18</sup>O-NO<sub>3</sub><sup>-</sup> and Stable Isotope Analysis in R (SIAR) were used to qualitatively and quantitatively analyse nitrate sources in the Pingzhai Reservoir water body. The values of <i>δ</i><sup>15</sup>N-NO<sub>3</sub><sup>-</sup> and <i>δ</i><sup>18</sup>O-NO<sub>3</sub><sup>-</sup> in water vary with season. Soil organic nitrogen and chemical fertilisers are the main sources of nitrate in autumn, while domestic sewage and livestock manure are the primary sources of nitrate in winter and spring. The SIAR results showed that chemical fertilisers, livestock manure, sewage, and soil organic nitrogen had the highest proportional contribution. In autumn, the proportional contribution of chemical fertilisers to river and reservoir were 47 and 51 %. During winter, the proportional contributions of livestock manure and sewage to river and reservoir were 53 and 68 %, respectively, and in spring 49 and 68 %, respectively. Considering the fragility of karst ecosystems, strict measures should be formulated for the use of chemical fertilisers and standards for sewage discharge should be raised. Control nitrogen input from agricultural activities and prevent water quality deterioration.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":"59 2","pages":"142-160"},"PeriodicalIF":1.1000,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Determination of nitrate sources in a karst plateau reservoir based on nitrogen and oxygen isotopes.\",\"authors\":\"Jie Kong, Zhongfa Zhou, Yongliu Li, Xianmei Liu, Chaocheng Wen, Jiangting Xie\",\"doi\":\"10.1080/10256016.2023.2176850\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Investigating the sources, migration and proportional contribution of nitrate is essential to effectively protect water quality. <i>δ</i><sup>15</sup>N-NO<sub>3</sub><sup>-</sup>, <i>δ</i><sup>18</sup>O-NO<sub>3</sub><sup>-</sup> and Stable Isotope Analysis in R (SIAR) were used to qualitatively and quantitatively analyse nitrate sources in the Pingzhai Reservoir water body. The values of <i>δ</i><sup>15</sup>N-NO<sub>3</sub><sup>-</sup> and <i>δ</i><sup>18</sup>O-NO<sub>3</sub><sup>-</sup> in water vary with season. Soil organic nitrogen and chemical fertilisers are the main sources of nitrate in autumn, while domestic sewage and livestock manure are the primary sources of nitrate in winter and spring. The SIAR results showed that chemical fertilisers, livestock manure, sewage, and soil organic nitrogen had the highest proportional contribution. In autumn, the proportional contribution of chemical fertilisers to river and reservoir were 47 and 51 %. During winter, the proportional contributions of livestock manure and sewage to river and reservoir were 53 and 68 %, respectively, and in spring 49 and 68 %, respectively. Considering the fragility of karst ecosystems, strict measures should be formulated for the use of chemical fertilisers and standards for sewage discharge should be raised. Control nitrogen input from agricultural activities and prevent water quality deterioration.</p>\",\"PeriodicalId\":14597,\"journal\":{\"name\":\"Isotopes in Environmental and Health Studies\",\"volume\":\"59 2\",\"pages\":\"142-160\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2023-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Isotopes in Environmental and Health Studies\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1080/10256016.2023.2176850\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Isotopes in Environmental and Health Studies","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/10256016.2023.2176850","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Determination of nitrate sources in a karst plateau reservoir based on nitrogen and oxygen isotopes.
Investigating the sources, migration and proportional contribution of nitrate is essential to effectively protect water quality. δ15N-NO3-, δ18O-NO3- and Stable Isotope Analysis in R (SIAR) were used to qualitatively and quantitatively analyse nitrate sources in the Pingzhai Reservoir water body. The values of δ15N-NO3- and δ18O-NO3- in water vary with season. Soil organic nitrogen and chemical fertilisers are the main sources of nitrate in autumn, while domestic sewage and livestock manure are the primary sources of nitrate in winter and spring. The SIAR results showed that chemical fertilisers, livestock manure, sewage, and soil organic nitrogen had the highest proportional contribution. In autumn, the proportional contribution of chemical fertilisers to river and reservoir were 47 and 51 %. During winter, the proportional contributions of livestock manure and sewage to river and reservoir were 53 and 68 %, respectively, and in spring 49 and 68 %, respectively. Considering the fragility of karst ecosystems, strict measures should be formulated for the use of chemical fertilisers and standards for sewage discharge should be raised. Control nitrogen input from agricultural activities and prevent water quality deterioration.
期刊介绍:
Isotopes in Environmental and Health Studies provides a unique platform for stable isotope studies in geological and life sciences, with emphasis on ecology. The international journal publishes original research papers, review articles, short communications, and book reviews relating to the following topics:
-variations in natural isotope abundance (isotope ecology, isotope biochemistry, isotope hydrology, isotope geology)
-stable isotope tracer techniques to follow the fate of certain substances in soil, water, plants, animals and in the human body
-isotope effects and tracer theory linked with mathematical modelling
-isotope measurement methods and equipment with respect to environmental and health research
-diagnostic stable isotope application in medicine and in health studies
-environmental sources of ionizing radiation and its effects on all living matter